它卖的主要材料包括：火液压巨头、灭火水龙带、消防水带、室内外消防栓、1211消防箱、和302灭火器等等。

The main materials it sells include fire hydraulic giant, fire hose, indoor and outdoor fire hydrant, firebox 1211 and 302 fire extinguisher, etc.

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此外，室内空气系统，热回收系统，中央真空系统，防火门电磁阀控制系统和室内消防水带的系统配置在中国是罕见的。

In addition, indoor air system, heat recovery systems, central vacuum system, fire doors Solenoid Valve Control system and indoor fire hose system configurations are rare in China.

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